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Reimplement nodeMaterial to use a temporary BufFile (or even memory, if the

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materialized tupleset is small enough) instead of a temporary relation.
This was something I was thinking of doing anyway for performance, and Jan
says he needs it for TOAST because he doesn't want to cope with toasting
noname relations.  With this change, the 'noname table' support in heap.c
is dead code, and I have accordingly removed it.  Also clean up 'noname'
plan handling in planner --- nonames are either sort or materialize plans,
and it seems less confusing to handle them separately under those names.
This commit is contained in:
Tom Lane
2000-06-18 22:44:35 +00:00
parent 2c0edb3c86
commit 1ee26b7764
32 changed files with 1090 additions and 982 deletions
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43
src/backend/nodes/outfuncs.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.119 2000/06/16 05:27:02 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.120 2000/06/18 22:44:05 tgl Exp $
*
* NOTES
* Every (plan) node in POSTGRES has an associated "out" routine which
@ -531,51 +531,29 @@ _outTidScan(StringInfo str, TidScan *node)
}
/*
* Noname is a subclass of Plan
*/
static void
_outNoname(StringInfo str, Noname *node)
{
appendStringInfo(str, " NONAME ");
_outPlanInfo(str, (Plan *) node);
appendStringInfo(str, " :nonameid %u :keycount %d ",
node->nonameid,
node->keycount);
}
/*
* Material is a subclass of Noname
* Material is a subclass of Plan
*/
static void
_outMaterial(StringInfo str, Material *node)
{
appendStringInfo(str, " MATERIAL ");
_outPlanInfo(str, (Plan *) node);
appendStringInfo(str, " :nonameid %u :keycount %d ",
node->nonameid,
node->keycount);
}
/*
* Sort is a subclass of Noname
* Sort is a subclass of Plan
*/
static void
_outSort(StringInfo str, Sort *node)
{
appendStringInfo(str, " SORT ");
_outPlanInfo(str, (Plan *) node);
appendStringInfo(str, " :nonameid %u :keycount %d ",
node->nonameid,
node->keycount);
appendStringInfo(str, " :keycount %d ", node->keycount);
}
static void
_outAgg(StringInfo str, Agg *node)
{
appendStringInfo(str, " AGG ");
_outPlanInfo(str, (Plan *) node);
}
@ -592,9 +570,6 @@ _outGroup(StringInfo str, Group *node)
node->tuplePerGroup ? "true" : "false");
}
/*
* For some reason, unique is a subclass of Noname.
*/
static void
_outUnique(StringInfo str, Unique *node)
{
@ -603,17 +578,14 @@ _outUnique(StringInfo str, Unique *node)
appendStringInfo(str, " UNIQUE ");
_outPlanInfo(str, (Plan *) node);
appendStringInfo(str, " :nonameid %u :keycount %d :numCols %d :uniqColIdx ",
node->nonameid,
node->keycount,
appendStringInfo(str, " :numCols %d :uniqColIdx ",
node->numCols);
for (i = 0; i < node->numCols; i++)
appendStringInfo(str, "%d ", (int) node->uniqColIdx[i]);
}
/*
* Hash is a subclass of Noname
* Hash is a subclass of Plan
*/
static void
_outHash(StringInfo str, Hash *node)
@ -1502,9 +1474,6 @@ _outNode(StringInfo str, void *obj)
case T_TidScan:
_outTidScan(str, obj);
break;
case T_Noname:
_outNoname(str, obj);
break;
case T_Material:
_outMaterial(str, obj);
break;